Enhancing Fluid Animation with Adaptive, Controllable and Intermittent Turbulence

Simple item page
dc.contributor.authorZhao, Yeen_US
dc.contributor.authorYuan, Zhien_US
dc.contributor.authorChen, Fanen_US
dc.contributor.editorMZoran Popovic and Miguel Otaduyen_US
dc.date.accessioned2014-01-29T07:51:09Z
dc.date.available2014-01-29T07:51:09Z
dc.date.issued2010en_US
dc.description.abstractThis paper proposes a new scheme for enhancing fluid animation with controllable turbulence. An existing fluid simulation from ordinary fluid solvers is fluctuated by turbulent variation modeled as a random process of forcing. The variation is precomputed as a sequence of solenoidal noise vector fields directly in the spectral domain, which is fast and easy to implement. The spectral generation enables flexible vortex scale and spectrum control following a user prescribed energy spectrum, e.g. Kolmogorov's cascade theory, so that the fields provide fluctuations in subgrid scales and/or in preferred large octaves. The vector fields are employed as turbulence forces to agitate the existing flow, where they act as a stimulus of turbulence inside the framework of the Navier-Stokes equations, leading to natural integration and temporal consistency. The scheme also facilitates adaptive turbulent enhancement steered by various physical or user-defined properties, such as strain rate, vorticity, distance to objects and scalar density, in critical local regions. Furthermore, an important feature of turbulent fluid, intermittency, is created by applying turbulence control during randomly selected temporal periods.en_US
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on Computer Animationen_US
dc.identifier.isbn978-3-905674-27-9en_US
dc.identifier.issn1727-5288en_US
dc.identifier.urihttps://doi.org/10.2312/SCA/SCA10/075-084en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): Computer Graphics [I.3.5]: Computational Geometry and ObjectModeling-Physically Based Modeling; Computer Graphics [I.3.7]: Three-Dimensional Graphics and Realism -Animation;Turbulence, Fluid Simulation, Animation Control, Random Forcing, Intermittency, Kolmogoroven_US
dc.titleEnhancing Fluid Animation with Adaptive, Controllable and Intermittent Turbulenceen_US
Files
Original bundle
Now showing 1 - 4 of 4
Thumbnail Image
Name:
075-084.pdf
Size:
684.42 KB
Format:
Adobe Portable Document Format
Download
No Thumbnail Available
Name:
exp1.mov
Size:
5.11 MB
Format:
Video Quicktime
Download
No Thumbnail Available
Name:
exp2_3.mov
Size:
17.04 MB
Format:
Video Quicktime
Download
No Thumbnail Available
Name:
exp4.mov
Size:
16.88 MB
Format:
Video Quicktime
Download
Collections
SCA 10: Eurographics/SIGGRAPH Symposium on Computer Animation